|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Synthesis and characterization of vertically aligned La0.7Sr0.3MnO3:NiO nanocomposite thin films for spintronic applications | | Gyanendra Panchal
; Anjali Panchwanee
; Manish Kumar
; Katharina Fritsch
; Ram Janay Choudhary
; Deodutta Moreshwar Phase
; | | Date: |
2 Nov 2020 | | Abstract: | The microstructures and interfaces of two-phase vertically aligned
nanocomposite (VAN) thin films play a key role in the design of spintronic
device architectures and their multifunctional properties. Here, we show how
the microstructures in self-assembled VAN thin films of La0.7Sr0.3MnO3:NiO
(LSMO:NiO) can be effectively tuned from nano-granular to nano-columnar, and to
nano-maze by controlling the number of laser shots from the two constituent
phase targets in the pulsed laser deposition (PLD) film growth. The observed
microstructural induced strain is found to significantly enhance the
magnetoresistance in a very broad temperature range between 10-240 K and to
modulate the in-plane exchange bias (EB), with the largest EB value observed in
the maximally strained heterostructures. Most interestingly, a unique
perpendicular exchange bias (PEB) effect is also observed for these
heterostructures with an enhanced PEB field of up to 230 Oe. X-ray magnetic
circular dichroism and training effect measurements demonstrate that the
observed EB is disorder-induced and arises due to the pinning of NiO
uncompensated moments at the disordered interface which is ferromagnetically
coupled with LSMO. Furthermore, systematic changes in the electronic structure
across the vertical interface related to a variation of the Mn3+/Mn4+ content
arise as a consequence of out-of-plane tensile strain. | | Source: | arXiv, 2011.01361 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER